Outside of Japan, ('; lit. "pervert") is anime and manga pornography.

In the Japanese language, however, "hentai" is not a genre of media but any type of perverse or bizarre sexual desire or act.

For example, outside of Japan a work depicting lesbian sex might be described as "yuri hentai", but in Japan it would just be described as "yuri".

720p (1280×720 px; also called HD Ready or standard HD) is a progressive HDTV signal format with 720 horizontal lines and an aspect ratio (AR) of , normally known as widescreen HDTV (1.78:1).

All major HDTV broadcasting standards (such as SMPTE 292M) include a 720p format which has a resolution of 1280×720; however, there are other formats, including HDV Playback and AVCHD for camcorders, which use 720p images with the standard HDTV resolution.

The frame rate is standards-dependent, and for conventional broadcasting appears in 50 progressive frames per second in former PAL/SECAM countries (Europe, Australia, others), and 59.94 frames per second in former NTSC countries (North America, Japan, Brazil, others).

1080p (1920×1080 px; also known as Full HD or FHD and BT.709) is a set of HDTV high-definition video modes characterized by 1080 horizontal lines of vertical resolution; the p stands for progressive scan, i.e. non-interlaced.

The term usually assumes a widescreen aspect ratio of , implying a resolution of 2.1 megapixels.

It is often marketed as full HD, to contrast 1080p with 720p resolution screens.

A laptop, also called a notebook computer or just notebook, is a small, portable personal computer with a "clamshell" form factor, having, typically, a thin LCD or LED computer screen mounted on the inside of the upper lid of the "clamshell" and an alphanumeric keyboard on the inside of the lower lid.

The "clamshell" is opened up to use the computer.

Laptops are folded shut for transportation, and thus are suitable for mobile use.

Its name comes from "lap", as it was deemed to be placed for use on a person's lap.

Although originally there was a distinction between laptops and notebooks, the former being bigger and heavier than the latter, as of 2014, there is often no longer any difference.

Laptops are commonly used in a variety of settings, such as at work, in education, in playing games, Internet surfing, for personal multimedia and general home computer use.

A mobile phone, known as a cell phone in North America, is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area.

The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which provides access to the public switched telephone network (PSTN).

Modern mobile telephone services use a cellular network architecture, and, therefore, mobile telephones are called cellular telephones or cell phones, in North America.

In addition to telephony, 2000s-era mobile phones support a variety of other services, such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, video games, and digital photography.

Mobile phones offering only those capabilities are known as feature phones; mobile phones which offer greatly advanced computing capabilities are referred to as smartphones.